Confused I decided to see if I could just install 7.1.3 without customisation and got the message :

Code:

This installation package could not be opened. Verify that the package exists and that you can access it, or contact the application vendor to verify that this a valid Windows Installer package.

Also - I am able to open the 7.1.2 msi files with 7-zip but the 7.1.3 gives me

Code:

Can not open file ........ as archive

This is the same for both the 32 and 64 bit msi files. I have re-downloaded without success.

My users who already have zco installed are able to update but I could do with the zco 7.1.3 install files for new users. Is there an alternate location I can download the install packages from, or am I going to have to give people the 7.1.2 files and then ask them to update ?